3-Hydroxybutanal

• Acetaldol
• 3 -hydroxybutyraldehyde
• Aldol

Oily, colorless to yellowish liquid with a pungent odor

Liquid

1.11 g · cm -3 ( 16 ° C)

-88 ° C

83 ° C ( at 27 hPa), decomposition above 85 ° C

0.1 hPa ( 20 ° C)

Miscible with 1- butylamine and water

1.4238

Risk

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3- hydroxybutanal, also called acetaldol, is a chemical compound. Your backbone is derived from butane and it has an aldehyde and an alcohol function.

Acetaldehyde is both under acidic and under basic conditions readily undergo aldol reaction to 3 - hydroxybutanal. This was mentioned in 1872 by Charles Adolphe Wurtz and Alexander Borodin Porfyrevich independently for the first time the reaction, the aldol reaction is known as today. 3- hydroxybutanal forms the basic framework for the class of aldols.

Production

Racemic 3- hydroxybutanal can be obtained by an aldol reaction between two molecules of acetaldehyde in the presence of a base, for example sodium hydroxide.

Properties

3- hydroxybutanal tends to dehydrate and reacts to crotonaldehyde.